Auniform 4.3-kg cylinder can rotate about an axis through its center at o. the forces applied are: f1 = 7.4 n, f2 = 4.2 n, f3 = 7.9 n, and f4 = 5.1 n. also, r1 = 13.5 cm and r3 = 7.0 cm. find the magnitude and direction (+: counterclockwise; -: clockwise) of the angular acceleration of the cylinder.

Write maxwell's equations and discuss the terms involved and the results of each equation in classical electrodynamics. if it is possible to write these equations in integral form, give the integral forms. find the wave equation for electromagnetic waves from the maxwell equations. what is the propagation velocity of electromagnetic waves in space according to the wave equation you find?

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.